CONTENTS 



CHAPTER PAGE 



1. Communal Life i 



II. Ammophila and her Caterpillars . 15 



III. The Great Golden Digger ... 56 



IV, Several Little Wasps . . . . 72 

 V. Crabro ....... 97 



VI. An Island Settlement . . . . 119 



VII. The Burrowers 141 



VIII. The Wood-Borers 178 



IX. The Spider-Hunters 196 



X. The Enemies of the Grasshopper . 248 



XI. Workers in Clay 265 



XII. Sense of Direction .... 275 



XIII. Instinct and Intelligence . . . 292 



